PT1497473E - Method for the recovery of gold - Google Patents

Method for the recovery of gold Download PDF

Info

Publication number
PT1497473E
PT1497473E PT03747131T PT03747131T PT1497473E PT 1497473 E PT1497473 E PT 1497473E PT 03747131 T PT03747131 T PT 03747131T PT 03747131 T PT03747131 T PT 03747131T PT 1497473 E PT1497473 E PT 1497473E
Authority
PT
Portugal
Prior art keywords
process according
oxygen
suspension
gold
maintained
Prior art date
Application number
PT03747131T
Other languages
Portuguese (pt)
Inventor
Matti Haemaelaeinen
Olli Hyvaerinen
Original Assignee
Outokumpu Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Outokumpu Oy filed Critical Outokumpu Oy
Publication of PT1497473E publication Critical patent/PT1497473E/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • C22B11/042—Recovery of noble metals from waste materials
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00—Obtaining noble metals
    • C22B11/06—Chloridising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Claims (11)

i Reivindicações 1. Processo para a recuperação de ouro de um resíduo de lixiviação ou produto intermédio contendo ferro e enxofre, que é gerado na lixiviação atmosférica com cloretos de uma macéría prima de sulfureto de cobre, caracterizado por o ouro ser lixiviado a partir do resíduo do produto intermédio numa solução aquosa de cloreto de cobre (II)-cloreto de sódio em condições atmosféricas com o auxílio de cobre divalente contido na dita solução e gás contendo oxigénio, quando o potencial de oxidação- redução da suspensão formada é mantido a um valor inferior a 650 mV e o pH a um valor de 1-3, em que o ferro e enxofre permanecem essencialmente não dissolvidos; o ouro dissolvido é recuperado, através de algum método conhecido e o resíduo não dissolvido é um residuo a ser eliminado.A process for the recovery of gold from a leach residue or intermediate product containing iron and sulfur which is generated in the atmospheric leaching with chlorides of a copper sulphide feedstock, characterized in that the gold is leached from the residue of the intermediate product in an aqueous solution of copper (II) chloride-sodium at atmospheric conditions with the aid of divalent copper contained in said solution and oxygen-containing gas when the oxidation-reduction potential of the formed suspension is maintained at a value less than 650 mV and the pH is 1-3, wherein the iron and sulfur remain essentially undissolved; the dissolved gold is recovered by some known method and the undissolved residue is a residue to be discarded. 2. Processo de acordo com a reivindicação 1, caracterizada por o potencial de oxidação- redução ser mantido na gama de 530 -620 mV.A process according to claim 1, characterized in that the oxidation-reduction potential is maintained in the range of 530-620 mV. 3. Processo de acordo com a reivindicação 1, caracterizado por o pH da suspensão ser mantida a um valor de 1,5-2,5.Process according to claim 1, characterized in that the pH of the suspension is maintained at a value of 1.5-2.5. 4. Processo de acordo com a reivindicação 1, caracterizado por a quantidade de cobre divalente na suspensão ser de 40-100 g/1.Process according to claim 1, characterized in that the amount of divalent copper in the suspension is 40-100 g / l. 5. Processo de acordo com a reivindicação 1, caracterizado por a quantidade de cloreto de sódio na suspensão ser de 200-330 g/1. 2Process according to claim 1, characterized in that the amount of sodium chloride in the suspension is 200-330 g / l. 2 6. Processo de acordo com a reivindicação 1, caracterizado por a temperatura ser mantida na gama entre 80°C e o ponto de ebulição da suspensão.A process according to claim 1, characterized in that the temperature is maintained in the range of 80Â ° C to the boiling point of the suspension. 7. processo de acordo com a reivindicação 1, caracterizado por o gás contendo oxigénio ser ar.A process according to claim 1, characterized in that the oxygen-containing gas is air. 8. Processo de acordo com a reivindicação 1, caracterizado por o gás contendo oxigénio ser ar enriquecido em oxigénio.A process according to claim 1, characterized in that the oxygen containing gas is oxygen enriched air. 9. Processo de acordo com a reivindicação 1, caracterizado por o gás contendo oxigénio ser oxigénio.A process according to claim 1, characterized in that the oxygen-containing gas is oxygen. 10. Processo de acordo com a reivindicação 1, caracterizado por o ouro dissolvido ser recuperado utilizando carvão activado.Process according to claim 1, characterized in that the dissolved gold is recovered using activated charcoal. 11. Processo de acordo com a reivindicação 1, caracterizado per o ouro dissolvido ser recuperado por electrólise. Lisboa, 31 de Outubro de 2006 1A process according to claim 1, characterized in that the dissolved gold is recovered by electrolysis. Lisbon, October 31, 2006 1 Fífl.lFig.
PT03747131T 2002-04-23 2003-04-07 Method for the recovery of gold PT1497473E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20020780A FI113667B (en) 2002-04-23 2002-04-23 Method for recovering gold

Publications (1)

Publication Number Publication Date
PT1497473E true PT1497473E (en) 2006-12-29

Family

ID=8563821

Family Applications (1)

Application Number Title Priority Date Filing Date
PT03747131T PT1497473E (en) 2002-04-23 2003-04-07 Method for the recovery of gold

Country Status (20)

Country Link
US (1) US7776135B2 (en)
EP (1) EP1497473B1 (en)
JP (1) JP2005523992A (en)
KR (1) KR20050006158A (en)
CN (1) CN100558917C (en)
AR (1) AR039330A1 (en)
AT (1) ATE336597T1 (en)
AU (1) AU2003215694B2 (en)
BR (1) BR0309292B1 (en)
CA (1) CA2480315C (en)
DE (1) DE60307617D1 (en)
EA (1) EA006521B1 (en)
ES (1) ES2271624T3 (en)
FI (1) FI113667B (en)
MX (1) MXPA04010238A (en)
PE (1) PE20040022A1 (en)
PL (1) PL198096B1 (en)
PT (1) PT1497473E (en)
WO (1) WO2003091463A1 (en)
ZA (1) ZA200408307B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1583848B1 (en) 2002-12-31 2011-07-13 Intec Ltd Recovering metals from sulfidic materials
FI117708B (en) * 2004-04-30 2007-01-31 Outokumpu Technology Oyj Procedure for the extraction of gold in connection with the manufacture of copper
FI117709B (en) * 2004-04-30 2007-01-31 Outokumpu Technology Oyj Procedure for the extraction of gold
FI117389B (en) 2004-12-28 2006-09-29 Outokumpu Oy A process for hydrometallurgical treatment of a sulphide concentrate containing several precious metals
FI117559B (en) * 2005-02-16 2006-11-30 Outokumpu Oy Procedure for extracting gold from a gold-containing solution
FI118429B (en) * 2005-02-16 2007-11-15 Outokumpu Oy Method for recovering gold from sulphide concentrate
FI118302B (en) * 2006-02-17 2007-09-28 Outotec Oyj Procedure for the extraction of gold
CN100545273C (en) * 2006-05-10 2009-09-30 中国科学院金属研究所 A kind of gold-extraction process that contains the cyaniding tailing of original sulfides parcel gold
EA014569B1 (en) 2006-05-12 2010-12-30 Би Эйч Пи Биллитон Са Лимитед Chloride heap leaching
JP4642796B2 (en) * 2006-09-28 2011-03-02 Ｊｘ日鉱日石金属株式会社 Gold leaching method
KR100787205B1 (en) * 2007-06-11 2007-12-21 광해방지사업단 Method for recovering precious metal using seawater from mining waste
JP4999108B2 (en) * 2008-03-27 2012-08-15 Ｊｘ日鉱日石金属株式会社 Gold leaching method
JP5319718B2 (en) * 2011-03-04 2013-10-16 Ｊｘ日鉱日石金属株式会社 Methods for leaching copper and gold from sulfide ores
JP5852916B2 (en) * 2012-04-03 2016-02-03 アサヒプリテック株式会社 Precious metal recovery method
IN2014MN01917A (en) 2012-04-09 2015-07-10 Process Res Ortech Inc
FI20145949A (en) * 2014-10-29 2016-04-30 Outotec Finland Oy Procedure for gold recovery

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244735A (en) * 1979-07-27 1981-01-13 Hazen Research, Inc. Chloride leach process for recovering metal values in the presence of arsenic
US4551213A (en) 1984-05-07 1985-11-05 Duval Corporation Recovery of gold
US4668289A (en) * 1985-11-22 1987-05-26 Wisconsin Alumni Research Foundation Method for reclaiming gold
AP538A (en) 1992-06-26 1996-09-18 Intec Pty Ltd Production of metal from minerals
CN1076401C (en) * 1999-04-22 2001-12-19 中南工业大学 Process for preparing gold by reduction of gold-contained chlorated liquid
FI108864B (en) * 2000-12-20 2002-04-15 Outokumpu Oy Process for dissolving copper concentrate

Also Published As

Publication number Publication date
US20050160877A1 (en) 2005-07-28
CA2480315C (en) 2011-06-07
US7776135B2 (en) 2010-08-17
DE60307617D1 (en) 2006-09-28
ES2271624T3 (en) 2007-04-16
EP1497473B1 (en) 2006-08-16
ZA200408307B (en) 2005-09-28
WO2003091463A1 (en) 2003-11-06
FI113667B (en) 2004-05-31
AU2003215694B2 (en) 2008-05-01
CN100558917C (en) 2009-11-11
PE20040022A1 (en) 2004-02-23
FI20020780A0 (en) 2002-04-23
EA006521B1 (en) 2006-02-24
AR039330A1 (en) 2005-02-16
CA2480315A1 (en) 2003-11-06
WO2003091463A8 (en) 2005-04-14
MXPA04010238A (en) 2005-06-08
EP1497473A1 (en) 2005-01-19
AU2003215694A1 (en) 2003-11-10
CN1653197A (en) 2005-08-10
BR0309292A (en) 2005-02-01
JP2005523992A (en) 2005-08-11
EA200401109A1 (en) 2005-06-30
BR0309292B1 (en) 2013-05-07
FI20020780A (en) 2003-10-24
PL198096B1 (en) 2008-05-30
PL371740A1 (en) 2005-06-27
KR20050006158A (en) 2005-01-15
ATE336597T1 (en) 2006-09-15

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